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dc.contributor.authorRispoli, Matthew
dc.contributor.authorLukin, Alexander
dc.contributor.authorSchittko, Robert
dc.contributor.authorKim, Sooshin
dc.contributor.authorTai, M. Eric
dc.contributor.authorGreiner, Markus
dc.contributor.authorLéonard, Julian
dc.date.accessioned2019-12-28T12:59:43Z
dc.date.issued2019-09
dc.identifier.citationRispoli, Matthew, Alexander Lukin, Robert Schittko, Sooshin Kim, M Eric Tai, Julian Léonard, and Markus Greiner. 2019. Quantum Critical Behaviour at the Many-body Localization Transition. Nature 573, no. 7774: 385-89.en_US
dc.identifier.issn0028-0836en_US
dc.identifier.issn1476-4687en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:42083017*
dc.description.abstractPhase transitions are driven by collective fluctuations of a system's constituents that emerge at a critical point. This mechanism has been extensively explored for classical and quantum systems in equilibrium, whose critical behavior is described by a general theory of phase transitions. Recently, however, fundamentally distinct phase transitions have been discovered for out-of-equilibrium quantum systems, which can exhibit critical behavior that defies this description and is not well understood. A paradigmatic example is the many-body-localization (MBL) transition, which marks the breakdown of quantum thermalization. Characterizing quantum critical behavior in an MBL system requires the measurement of its entanglement properties over space and time, which has proven experimentally challenging due to stringent requirements on quantum state preparation and system isolation. Here, we observe quantum critical behavior at the MBL transition in a disordered Bose-Hubbard system and characterize its entanglement properties via its quantum correlations. We observe strong correlations, whose emergence is accompanied by the onset of anomalous diffusive transport throughout the system, and verify their critical nature by measuring their system-size dependence. The correlations extend to high orders in the quantum critical regime and appear to form via a sparse network of many-body resonances that spans the entire system. Our results unify the system's microscopic structure with its macroscopic quantum critical behavior, and they provide an essential step towards understanding criticality and universality in non-equilibrium systems.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherSpringer Science and Business Media LLCen_US
dc.relationNatureen_US
dc.relation.hasversionhttp://arxiv.org/abs/1812.06959en_US
dash.licenseLAA
dc.subjectMultidisciplinaryen_US
dc.titleQuantum Critical Behaviour at the Many-Body Localization Transitionen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalNatureen_US
dash.depositing.authorGreiner, Markus
dash.waiver2019-06-18
dc.date.available2019-12-28T12:59:43Z
dash.affiliation.otherHarvard Business Schoolen_US
dash.funder.nameNational Science Foundationen_US
dash.funder.nameGordon and Betty Moore Foundations EPiQS Initiativeen_US
dash.funder.nameAir Force Office of Scientific Research MURI programmeen_US
dash.funder.nameArmy Research Office, Multidisciplinary University Research Initiative (MURI)en_US
dc.identifier.doi10.1038/s41586-019-1527-2
dc.source.journalNature
dash.waiver.reasonNature has requested this waiver since it is incompatible with their business model for a temporary period of time.en_US
dash.source.volume573;7774
dash.source.page385-389
dash.contributor.affiliatedSchittko, Robert
dash.contributor.affiliatedKim, Sooshin
dash.contributor.affiliatedLukin, Alexander
dash.contributor.affiliatedRispoli, Matthew
dash.contributor.affiliatedGreiner, Markus


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